Analysis

  • max time kernel
    4s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 18:07

General

  • Target

    27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05bN.exe

  • Size

    2.0MB

  • MD5

    8eafa73c310e5696ef8c6eede692bcb0

  • SHA1

    8c006502c13c906ba1c425bd60777d744ec6759b

  • SHA256

    27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05b

  • SHA512

    a0d661976d9e28343db958f544439db726a17e29d8fb5e81c5a9de09cfd5f73d6629e2c2a52be110f17ee2363111e8e5659d8ec94909f49dbe1c7a1f59558c92

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYQ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YK

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05bN.exe
    "C:\Users\Admin\AppData\Local\Temp\27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05bN.exe"
    1⤵
    • Quasar RAT
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4268 -s 552
          3⤵
          • Program crash
          PID:4276
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1452
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:5040
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3120
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\iUuHb9ozCZj2.bat" "
            4⤵
              PID:1896
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1480
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3312
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2472
                    • C:\Windows\SysWOW64\schtasks.exe
                      "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:3516
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ueX2Ud3CIyHC.bat" "
                      6⤵
                        PID:2068
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:1640
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:1788
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:4936
                              • C:\Windows\SysWOW64\schtasks.exe
                                "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                                8⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:4060
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 2256
                            6⤵
                            • Program crash
                            PID:1032
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 2276
                        4⤵
                        • Program crash
                        PID:4328
                  • C:\Users\Admin\AppData\Local\Temp\27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05bN.exe
                    "C:\Users\Admin\AppData\Local\Temp\27fe4a4fda2bb49f457c8d09ddd52e953a1812fcb442a0303033f5124d28e05bN.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:1888
                  • C:\Windows\SysWOW64\schtasks.exe
                    "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                    2⤵
                    • System Location Discovery: System Language Discovery
                    • Scheduled Task/Job: Scheduled Task
                    PID:1992
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4268 -ip 4268
                  1⤵
                    PID:4496
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:448
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:2804
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:368
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 520
                              3⤵
                              • Program crash
                              PID:5008
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3152
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:2572
                              • C:\Windows\SysWOW64\schtasks.exe
                                "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                                2⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:3084
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2804 -ip 2804
                              1⤵
                                PID:1760
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 5040 -ip 5040
                                1⤵
                                  PID:5092
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2472 -ip 2472
                                  1⤵
                                    PID:3668
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:3476

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

                                    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                      Filesize

                                      1KB

                                      MD5

                                      10eab9c2684febb5327b6976f2047587

                                      SHA1

                                      a12ed54146a7f5c4c580416aecb899549712449e

                                      SHA256

                                      f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                      SHA512

                                      7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                    • C:\Users\Admin\AppData\Local\Temp\iUuHb9ozCZj2.bat

                                      Filesize

                                      208B

                                      MD5

                                      cfde4a20a99888468bc7c20b2fc40273

                                      SHA1

                                      5a4ef4594c6de77859e45bca548d9542b36e46bb

                                      SHA256

                                      a08fc0909f10033382a319194335b29c9b78f2e89da563e909ee051440f48906

                                      SHA512

                                      49cf396bbffce2c39c66ff4eb6cf699dfc9c6f9ecd845a53800bb9c10c3560ed7926d6f61616e9888ead56e2bfde7dfb24d0f5f724b3ae5402b8db28c1221294

                                    • C:\Users\Admin\AppData\Local\Temp\ueX2Ud3CIyHC.bat

                                      Filesize

                                      208B

                                      MD5

                                      eebed1a71ef6bfa42df3d3fcf737d863

                                      SHA1

                                      2a4a7ac6155957427c1073ab6c5a69f2d3659657

                                      SHA256

                                      7051561d2dce18dafa941ebb5f672aff7520cda4d4d376b31d36b40237b7f1f6

                                      SHA512

                                      32fb60a368254f0becfe00f5507b40a0ef9d610e272b6882133c66fe4dc41cb90eebb2d3c1708dc6c49dd05910e92b1423bb98f66a7410dce4b0462c9b970dde

                                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                      Filesize

                                      405KB

                                      MD5

                                      b8ba87ee4c3fc085a2fed0d839aadce1

                                      SHA1

                                      b3a2e3256406330e8b1779199bb2b9865122d766

                                      SHA256

                                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                      SHA512

                                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                      Filesize

                                      349KB

                                      MD5

                                      b4a202e03d4135484d0e730173abcc72

                                      SHA1

                                      01b30014545ea526c15a60931d676f9392ea0c70

                                      SHA256

                                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                      SHA512

                                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                    • C:\Users\Admin\AppData\Roaming\Logs\10-09-2024

                                      Filesize

                                      224B

                                      MD5

                                      ec64391f6f0cb06a016a8ed7ae795e77

                                      SHA1

                                      351d0076c63ff965f4c4ba47b6b22d2c358d44b6

                                      SHA256

                                      4b8e2f964905aee51b5fdd76e44ad042ffc7b8c6979ab56dae1e15d581df9162

                                      SHA512

                                      ef5d18db166821e5933922a1e657c7038def3479c8505d145946aae1413c38b61df86bdfe171211cffee53428ed58f64f1462d6f62006d0655409d68c38a1434

                                    • C:\Users\Admin\AppData\Roaming\Logs\10-09-2024

                                      Filesize

                                      224B

                                      MD5

                                      5cdf0430a16e196557c58d90c3e4415d

                                      SHA1

                                      2908507d0674482cd12b2e36eef5c17b9382a204

                                      SHA256

                                      6cd3e6344a3149bd10bde7e80b74dcefab2d6f97b2f2cf9d364a74a5c78199a0

                                      SHA512

                                      d2d3beb116108e45f975cfd13892d7eae14f2989c6a4be016359d05f2136cf5afc6f8b32c0cf23464c5e46ad179cfa3371b5208f06d441096aed3dc1fa91cab4

                                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                                      Filesize

                                      2.0MB

                                      MD5

                                      9fe9b6dcbc14b304c366573d0ff8d427

                                      SHA1

                                      f241df123466900977095d5e30757268c1d30b7b

                                      SHA256

                                      18a932eaa6ad59e459709eaf19596e2c40fa592c126c7a0b2177d0a2d685d052

                                      SHA512

                                      311fd02898ed19765f2d4a7176ec70ba3c1c51bd62258207db3c9ca500eadd623fd30a1c11b5cbcdfb759fab2ae00e9f7e59098f8a5355ddafbedd178aaf2f2b

                                    • memory/1000-34-0x00000000059C0000-0x0000000005A52000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/1000-35-0x00000000058F0000-0x0000000005956000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/1000-36-0x0000000006600000-0x0000000006612000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/1000-37-0x0000000006B40000-0x0000000006B7C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/1000-33-0x0000000005E30000-0x00000000063D4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/1000-30-0x0000000000FA0000-0x0000000000FFE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/1000-29-0x000000007303E000-0x000000007303F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/1888-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1888-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2564-19-0x0000000004090000-0x0000000004091000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/5040-45-0x0000000006830000-0x000000000683A000-memory.dmp

                                      Filesize

                                      40KB